Heel coating machine



JuEy 23, 1935 l.. JL BAzzoNl HEEL COATING MACHINE 2 Sheets-Sheet 1 FiledApril 8, 1931 Juy 23, 1935. L 1 BAZZoNl v 2,698,780

HEEL COATING MACHINE Filed April 8, 1931 2 Sheets-Sheet 2 iifo j Ithas'been'foundthatthe application ofja. f uniform coatnggratlyfacilitated byposirtionli'n'ga "lieelinverted position; with -one^corner Patented July 23, 19.35

GFFICE f 'Zml f l Y. `HEEL COATINGMACHINE Q g yLewis nazioni.swamps-ottime assista: to; United ShoejMaohi'nery Corporation,"Paterson,

N. Ji; va. corporation of NefwJe'rsey*n ff fr Y ijlimlica'tionl AprilQ-lltfserial 528,578

' *1i claims;

, invention,Ifrlates toheel coatingand is illustrated' as embodied in amachine for coating heelsbydipping them. A very large percentage-of`Womens shoes at the present time are provided with wood heels and it iscustomary to lcover thesexheels either by. painting or lacquering them`or else by 4sticking, on a coverof thin material whichwmay beiofleatherifor fabric and. which usually matches the upper ofthe shoe.Obviously the cover rapplied tothe 'heel must adhere .very tightly itYwill noty become separatedv during Wearrfof the shoe, and it iscustomary to apply' adhesive tothe vcurved periphery of the heel' atleast andusually to al portion' of kthe vattaching-suriacefandthe Wholeof the breast surface." :One convenient iway of 1 applying adhesive,hereinafter called cement for` convenience, is by'dipping the heels andthen allow'ingthe surplus to-drain'of. l Preferably the Whole oftheattachingv surfaceshould 'not be coated because it is customary to markthe-'size and style of the heel on thisfsurfaceand'the liquid coatingmayk obliterate some of these marks. lThe WoodV utilized for making-1heels' for shoesis rkiln dried' andv contains'v a considerable quantityAof air which should be allowedto' esoapeduring the periodwhen the heelsare immersed in the cement soi that no bubbles will form in the'coatingof the heels after Ywithdrawal;- -Furthermore, -in view` of' the viscous,nature of n'the' cement,

great care must be utilized in draining: the "surf `-plus cement fromthe heels inv orderr'that 'the coating applied may be uniformcvertlisurface :of the heel and-Without Wrinkles orA sags.l

' With aview'to satisfying-these and ther'requirements, one object ofthe present inventlonis to provide an improved machine for dippingYheels lby means of which a uniform coating inaybe'applied vwith avminimum ofa care upon the part-oi' of the attaching surface belowtheirestoftlie fheei, and? that the desired object' m11 also `be"obtained Hwith greater certainty yiffthefheels- 'are Yv'vitlidravvnfrom the bath vofcementvery graduv'ally'. feature :of the invention',therefore; fresides'inv 'a heel support for vuse with ra heelldipping,jtheba'se 22.

horizontal and 'guide members` are associated With-the holding means toaid the Voperator-in :determining thepositions of 'the heels.. l

1;"Ihe'p1actinabilityof such a machine and the ,production which can beobtained depend quite .5 7largely upongthe facilitywith which the heelscan :befmounted uponj their supports. Still another feature ofntheinvention consists in'a support comprising inclined ,i holding meansand*y disf'placeaolefJ heel engaginggmeans -for aiding .the l0operatormounting heels on the holding means substantia in `alinementtherewith. .As illustratedgthissupport comprises an-upwardly di'-.rected\, retaining member having a sharpened vprong upon'vvhichv a.heel maybe impaled,'and a vc c`m1pressib1e member surrounding the yshankof .thevretainingmember which reacts With a sur- Iaceiof theheel toposition the heel on said prong. .Thefillustrated;,compressiblememberacts at the same timegto pr'otect the central portions of thezattachingfsurfaces of theheels from the'appliecation of liquid, 'Injthe illustrated machine, the

supnort. is made :in the form of a rack having a series of .barsinwhich'are fixed upwardlyfdiqrected, inclined retaining pointsvprojectiingly 2,5

Athroughr resilient,.iheelshaped blocks. These blocks have.upstanling`peripheral rims adapted t0:contact `,.with.-v the attaching surfaces ofthe heels ,andtobeicompressedin the application of the heels tothesupport. .30 These andi other features of the invention will vfnovv" bedescribed in' 'the .following speciiication l taken in connectionwiththeacccmpanying draw- 'ingainwhich' Y ,Fig-Bis a detail sectional viewon a larger scale,

showing-.one o'i the heel supports; and :f1.0 Fig. 4 isasimilar'view oftheivalve mechanism controlling the Yspeed of withdrawal of the heelsVfrom the cement. y i i *.Heels. Eiland l2 are mounted upon alsupporting fracK-QMwhich is suspended by means of hooks I 6 ,49,5

@from yolresy ladjustably supportedl by bolts yZIJ uponabase.Tfhecernentle is carried in a container 26 nounted upon a movablestandard ZBfhavingfa plunger 30 entering alchamber `3V2in 5,0 'mre isasumcient quantity of air in 'the neeis :so that bubbles continue toemerge fromithe im- Lmei-sed"heels for something like lthree minutes-andfaproper even coating unaffected by air bubl`bles*cannotbeappliedunless all the'air hasbe'en .55.5

hydraulic elevator for raising the containerx and controlling itsdownward movements to regulate the speed of withdrawal of theheelst'ffrm the liquid. To raise the container, there has been provideda pump 34 includingapistor'ili,adamted` .to be actuated by a foottreadle 3Min-Th 1.001? treadle is pivoted on the base 22 and connectedby means of an upright rod 40* to a'ringeshaped rocker 42 the other sideof which is 'pivotedg'to a piston rod 44. A spring 46 surrounding therod 40 holds the'treadle normally'.` inelevatedposition.Hspring-pressed, `one-way`rrlr valve `4B fpre'- vents back flow of theliquid from thee-chamber 32. Access to this valve'and adjustx'nent ofthespring pressing againt the valve is` providedlbyel threaded plug 49..kAbove the pumplchamber 34 is a reservoir 50 holding' asupply'fof---liquidf-such as oil. The pump piston36, as'r illustrated",comprises aV plate or spider 52 having angularfpassages 53 andacup-shaped'packing 5,4 secured toa washer 55 loosely held on thepistonvbya rigid plate 56.attached to the :end of therpiston rod 44withinthe cup-shaped packing 54.

When it is desired to lowerfthe container 26 to withdraw theheels fromthe cementglthe' treadle 38 is depressed tobring the piston=36and-especially the plate k55 against thevalve 48, Ias'shown4 in Fig. 4,and allow theoil to returntothe reservoir 50 through the passages 53...vTheispeedoiwth- -drawal of the heels is controllediby regulating thedegree to whichthe passages 53 Vare openedand this, in turn, isregulaterby means of a stop 60 which coacts with ythe .rockerring 42when A.the treadle is depressed to limit the downward miovement of thepiston 36; `:.Thisstop screw -SIIis threaded in a removableblock appliedto the base,

`which block performs the additionalfunctlon of a key for the Aplunger3|)4 to-.prevent rotation; of the support 28 with respect to'thefnase22.`

It is quite immaterial :whether We'areY dealing with a Cuban heel Ill=ora'Iouis heel I2'.` The important thing `is to position the. heel ininclined, and preferably in an inverted'position and such that none ofthe plane surfaces of the heel-are horizontal.` vThe heels. are.skewed-.with respect to the rack I4 so that one corner of the attachingsurface is lower than Vthe rest of the heel to permit '1 the cement todrain more readily from this corner.

.The rack I4 comprises a pluralityof `cross-bars 62 in which are securedinclined, upwardly directed, retaining members 64 (Fig..3) having asharpened point or prong SI5-adapted to be -driven into the heel.Surrounding these retaining members 64 are blocks 58 eachvhaving-"afperiplleral contour which is generally U-shaped likeafheel(see also Fig. 1) and which are of compressible materiaL such as spongerubber, which are'backed up by washers Ifill andare provided withupstanding peripheral rims 12 substantiallyieven'with the ends oftherprongs and adapted to conta c't" t'ightly with the attaching 'or cup.surfaces l4fof4 thelheels, thereby to protect thefcentralportion of:'efachof these surfaces rfromthe applicationof '75 This, ergenis .the',Sge-aeeisirl; matigen.- .sie

heel from being covered with cement and hence partially obliterated.

In the use of the machine, the operator will take one of the racks I4 ona bench which, if desired, may be provided with angular ribs (not shown)to back up the bars 62 of the rack and the retaining member 64 thereonand to permit the operator to secure heels on Vthe yrack bytappingfthe'm lightly againstthe prongs 6 6" with the heels extendingheightwise in thegeneral direction of the prongs. In this operation theskewed position of the heels shown most clearly in Fig. l willbe-linsuedby reason of the heel shape of eachv ofthe sponge rubber blocks 68 whichsubstantiallycomplements the form of a characteristic featurekfof theheel, here the peripheral contour of the attaching surface. Theseblocks, then, -will guide the operator by touch in orienting theheelsand impel him to position the correspondinglyshaped attachingsurface of the heel in coriresponding' position on the blockl Atthe-same -time, a heel presented to the holder will be guided by touchto a position with its axissubstantially aligned with the'axis. of -aprong as the cupped :attaching `surfaceof the heel is brought into firmcontact with the inclined ytop surface of-fthe rub- --ber .block 68. Alight tap of the hammer will then Lbe s'uiiicient. to impalethe heel onthe prong-66 vand theupstanding rim 12 of the blocks. 68 will serveto.position the.,heei. in inclined,a inverted iposition on the rack-:withnone of its plane sur- .faces horizontal andwith one. corner of theat- 'caching surface below, the rest of the heel. Depression-of thetreadle 38 to operate the pump 34 `Willlthen serveto raisethe vcontainer26 to immerse theheels.,The containeris held in elevated positionbythelvalve 48 and will be'fretained .there-for the desiredperiod ofapproximately three minutes. After this, the operator will step on .thetreadle 38 and force it down as far as is permitted by, the stop screw60, thus opening the valve 48 and allowingthe liquidinrtherchamber .32toflowoutslowly through the passages 53 vunder.therweightwof the cementcontainer and vattachedparts.V This relief may be `-rnade as slow"orasrapid asis desired, thereby tocontrol the Vspeed of withdrawal ofthe heels from the liquid. `If thegheels arewithdrawn. too fast, thecement Aonltheslirfaces, of the heels is likelyrto dry in ridges,`whereasif they `are vWithdrawn slowly ltherewill be plenty Vofopportunity for the surpluscementto drain ofi as they graduallyemergefrom thefliquldv Having t hus described my invention, what .I ,claim asnew and desire to secure by Letters Pateiiitof tl'ieg United LStates.is: Y

i.; Inl a machine for dipping heels, a support `forv inverted heelscomprising Yan upwardly -di rected retaining membenhaving a sharpenedprongV and a compressible member surrounding ,the shank of saidretaining vrmember reacting with a of Va. heel tending to push the heelawa-y f inthe prong andacting to` position the heeiihereon e .-f f f 12. ;A supportfforfinverted heels". comprising a frame: ,having;a.plura1ityv of Vupwardly directed, ,inclined retainingV points x'edtherein. and re- .siliefgi blocks threugh Wlilh said mints project.,saidblocks'beingadapted to contact. withth'e at'- ftaching s,1.J.rface'-of ueachof the heels' to protect thecentralportionsof s'aidsurfaces from the application Ofemnt rtially heel shaped blocks of aresilient material surrounding the shanks of said points', said blocksbeing provided with peripheral rims adapted to contact with theattaching surface of each of the heels and to be compressed in theapplication of the heels to the support thereby to position the heels onthe support and to prevent the application of cement to the protectedsurface.

4. In a machine for dipping heels, a support for inverted heelscomprising a plurality of parallel, upwardly directed, inclined heelattaching points and substantially heel-shaped lrubber blocks throughwhich said points project, said blocks being mounted on said support inskewed position, to the end that a -heel the attaching surface of whichis impaled by said points Will be positioned with respect to the pointsby said rubber blocks to bring one corner of the attaching surfacelowermost upon the support. v

5. In a machine for dipping heels, a heel supporting grid comprising aplurality of parallel, inclined bars, heel attaching points mounted insaid bars in inclined, upwardly directed positions, and resilient blockson said bars through which said points project, said blocks beingconstructed andY arranged to protect the central portion of theattaching surface of each of the heels and to position said heels onsaid points in skewed, tilted relation to said bars whereby one cornerof each of said heels is lowermost.

6. In amachine for dipping heels, a heel support comprising asubstantially horizontal frame, means on the frame to hold a heel in aposition inclined thereto, and displaceable resilient heel engagingmeans beside the heel holding means Y to engage a heel and thereby toaid the operator characteristic feature of the form of a heel toposition it on the prong in skewed relation to the surface of the liquidwith one corner of the attaching surface of the heel lowermost.

8. In a machine for dipping heels, a support for a heel, 'a sharpenedprong projecting outwardly from the support, yand a heel-shapedresilient member surrounding said prong for engagement with the surfaceof a heel as the latter is positioned on the prong, thereby to determinethe relation of the heel to the prong.

9. In a machine for dipping heels, a support inclined to the horizontal,andyieldable members surrounding said prongs to assist the operator incorrectly positioning heels on the prongs, said members each having aheel engaging surface lying normally beyond the end of the prongs andinto contact with which the heels may be brought to determine theirangular positions about the prongs before they are impaled thereon.

l1. In a machine for dipping heels, a substantially horizontal support,a series of heel-holding prongs extending upwardly from the support andinclined to the horizontal, and depressible members upon the supporteach surrounding a prong and having a peripheral contour correspondingto the contour of the attaching face of a heel, each of said membersbeing constructed and arranged to engage such face of a heel presentedto a prong before the heel is impaled thereon, thereby to determine theposition of a loose heel, and yieldable along the prong to allow theheel to be'forced on to the prong. Y

` LEWIS J. BAZZONI.

